Network Technologies Smoke Alarm PS 2 KVM User Manual

1275 Danner Dr Tel:330-562-7070  
R NETWORK  
Fax:330-562-1999  
TECHNOLOGIES Aurora, OH 44202  
INCORPORATED  
NTI  
KEEMUX® Series  
KEEMUX-Px  
PS/2 KVM Switch  
Installation and Operation Manual  
MAN077 Rev Date 7/2/2007  
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TABLE OF CONTENTS  
INTRODUCTION.............................................................................................................................................................1  
MATERIALS....................................................................................................................................................................1  
FEATURES AND FUNCTIONS.......................................................................................................................................2  
INSTALLATION...............................................................................................................................................................3  
Prepare To Connect ....................................................................................................................................................3  
Make Connections.......................................................................................................................................................3  
Power Up.....................................................................................................................................................................5  
CASCADING...................................................................................................................................................................5  
Limitations....................................................................................................................................................................5  
Configuration ...............................................................................................................................................................6  
Cascaded Installation ..................................................................................................................................................6  
USING THE NTI KEEMUX PS/2 KVM SWITCH.............................................................................................................7  
Front Panel Control......................................................................................................................................................7  
Keyboard Control.........................................................................................................................................................8  
Basic Command Mode .............................................................................................................................................8  
Scan Mode................................................................................................................................................................9  
Broadcast Mode........................................................................................................................................................9  
Normal Mode ............................................................................................................................................................9  
OSD CONTROL............................................................................................................................................................10  
Security Option ..........................................................................................................................................................10  
Enabling the Security Feature ...................................................................................................................................10  
User Login Mode.....................................................................................................................................................10  
Additional Modes Available With Security .................................................................................................................11  
Administration Mode...............................................................................................................................................11  
Administrator Password..........................................................................................................................................11  
User Name List .......................................................................................................................................................12  
System Access List.................................................................................................................................................12  
User Access Functions..............................................................................................................................................13  
OSD Command Mode ............................................................................................................................................13  
Scan Mode..............................................................................................................................................................14  
Broadcast Mode......................................................................................................................................................14  
Normal Mode ..........................................................................................................................................................14  
Edit Mode................................................................................................................................................................15  
Search Mode...........................................................................................................................................................16  
Maintenance Mode .................................................................................................................................................16  
Help Mode...............................................................................................................................................................17  
RS232 CONTROL.........................................................................................................................................................18  
RS232 Connections and Configuration .....................................................................................................................18  
Remote Connection................................................................................................................................................18  
Baud Rate...............................................................................................................................................................18  
Unit Address and Loop Back ..................................................................................................................................19  
Command Protocol....................................................................................................................................................20  
Matrix Switcher's Control Program For Windows 9X, NT, 2000 And XP ..................................................................21  
SerTest- RS232 Interface Test Program...................................................................................................................21  
Main Options...........................................................................................................................................................21  
KEYBOARD MAPPING.................................................................................................................................................22  
HOW TO DISABLE OPERATING MODES...................................................................................................................23  
Configuring The Jumper Block ..................................................................................................................................24  
AUDIO SUPPORT.........................................................................................................................................................25  
DUAL VIDEO SUPPORT ..............................................................................................................................................25  
SPECIFICATIONS FOR STRAIGHT-THROUGH RS232 SERIAL CABLE..................................................................26  
TROUBLESHOOTING ..................................................................................................................................................26  
WARRANTY INFORMATION........................................................................................................................................26  
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TABLE OF FIGURES  
Figure 1- Keyboard dip-switch configuration......................................................................................................................................3  
Figure 2- Connect the monitor to the KEEMUX .................................................................................................................................3  
Figure 3- Connect the user keyboard and mouse..............................................................................................................................4  
Figure 4- Connect a CPU to the KEEMUX.........................................................................................................................................4  
Figure 5- Cascaded configuration......................................................................................................................................................5  
Figure 6- Cable connections for cascading........................................................................................................................................6  
Figure 7- Connect remote extension cables between cascaded units...............................................................................................7  
Figure 8- Connections grouped by port number ................................................................................................................................9  
Figure 9- Administrator password change .......................................................................................................................................11  
Figure 10- Command Mode menu...................................................................................................................................................13  
Figure 11- Press <Ctrl> for more functions......................................................................................................................................14  
Figure 12- Edit Mode screen............................................................................................................................................................15  
Figure 13- Search Mode screen ......................................................................................................................................................16  
Figure 14- Maintenance Mode screen .............................................................................................................................................16  
Figure 15- RS232 connection with Matrix-Y-1 cable........................................................................................................................19  
Figure 16- Pinout of Matrix-Y-1 cable ..............................................................................................................................................19  
Figure 17- Location of the jumper block...........................................................................................................................................23  
Figure 18- Remove screws to open case.........................................................................................................................................23  
Figure 19- Clear the jumper block for configuration access.............................................................................................................24  
Figure 20- Place jumpers according to desired functionality............................................................................................................24  
Figure 21- Control CPU audio with KEEMUX-P4-A.........................................................................................................................25  
Figure 22- Connections for video cables on the KEEMUX-P4-DV...................................................................................................25  
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NTI KEEMUX Series PS/2 KVM Switch  
INTRODUCTION  
The KEEMUX PS/2 KVM switch (KEEMUX) enables access to several IBM PC-AT, PC-AT Clone or PS/2 CPUs from one monitor,  
keyboard and PS/2 mouse (up to 32 CPUs as a single switch or 152 CPUs when switches are cascaded). These CPUs can be  
file servers, network managers, etc. Internal microprocessor driven circuitry allows all CPUs to be booted simultaneously and  
error free with only one keyboard and mouse present. Port selection is accomplished through front panel push buttons or  
commands typed on the keyboard. Port status LEDs continuously update on the front panel of the switch.  
Available Options  
Switch models are available in 60 or 50 Hz, and 110 or 220V.  
OSD -On Screen Display feature will superimpose operating menus directly onto the monitor for security administration and  
control. Add "-O" to the part number (i.e. KEEMUX-Px-O)  
RS232 support for alternative control using RS232 connection Add "-RS" to the part number (i.e. KEEMUX-Px-RS)  
Audio support to enable user to connect stereo speakers to receive audio signals from connected CPUs- add "-A" to the part  
number (i.e. KEEMUX-Px-A)  
Dual Video option supports CPUs with two video outputs. Add "-DV" to the part number (i.e.KEEMUX-Px-DV)  
See our catalog, visit our website at http://www.networktechinc.com, or contact an NTI sales representative at 800-742-8324 (800-  
RGB TECH) or 330-562-7070 for more details.  
Limitations  
The KEEMUX Px KVM switch is compatible with PS/2 mice and PS/2 CPU ports ONLY. Serial mice cannot be adapted for  
use with the KEEMUX Px KVM switch.  
Serial ports on CPUs require the NTI VOPEX-IM9D for use with this switch.  
MATERIALS  
Materials Supplied with this kit:  
NTI KEEMUX Px KVM Switch (4,8,12,16,20,24, or 32 port)  
120VAC or 240VAC at 50 or 60Hz-5VDC/2.0A AC Adapter  
Line cord, country specific  
CD with pdf file of this manual  
Materials Not Supplied, but REQUIRED:  
Monitor, keyboard, and mouse interface cables ARE REQUIRED but not supplied.  
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-
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VEXT-xx-MM for video interface  
VKEXT-xx-MM for keyboard interface  
VKEXT-xx-MM for mouse interface  
MONITOR  
KEYBOARD  
MOUSE  
Optional:  
-
VVKINT-xx-MM "Y"-cable for keyboard and mouse  
interface  
KEYBOARD  
and MOUSE  
Where:  
xx is the length of the cable in feet  
MM indicates male-to-male connector  
All cables can be purchased from Network Technologies Inc by calling 800-RGB-TECH (800-742-8324) or (330)-562-7070.  
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NTI KEEMUX Series PS/2 KVM Switch  
FEATURES AND FUNCTIONS  
Front View of KEEMUX-P8  
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Network Te chnologies Inc  
Broad Com  
cast mand  
Scan  
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On  
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1. Power ON/OFF switch  
2. Mode LEDs- for visual indication of switch mode status  
3. CPU Status LEDs- for visual indication of connection between the user and a specific CPU.  
4. CPU Select Switches- push to manually switch to a specific CPU  
5. Dip-switches- for configuring keyboard type and cascaded switches  
6. MONITOR- 15HD female connector- for connection of the user monitor  
7. VIDEO x- 15HD female connectors- for connecting video cables from CPUs  
8. 5VDC- 2.0A- connection jack for the AC adapter  
9. CPU x- 6 pin miniDIN female connectors- for connection of device cable(s) from CPU(s)  
10. PS/2 DEVICES- 6 pin miniDIN female connectors- for connection of user device(s) (keyboard/mouse)  
11. DAISY In/Out- for attaching interface cables (REXT-SR-xx) between slave switches and the master switch  
Rear View of KEEMUX-P8  
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1275 Danner Dr  
Aurora, OH 44202  
Tel:330-562-7070  
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Fax:330-562-1999  
Mouse  
Keyboard  
Daisy  
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2A  
Daisy  
In  
Out  
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CPU  
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CPU  
7
CPU  
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CPU  
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CPU  
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CPU  
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CPU  
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NTI KEEMUX Series PS/2 KVM Switch  
INSTALLATION  
Prepare To Connect  
1. Before connecting the KEEMUX to the CPUs, make sure all CPUs, the monitor, and the KEEMUX are turned OFF.  
WARNING! DAMAGE MAY OCCUR TO THE CPU IF POWER IS NOT DISCONNECTED BEFORE CONNECTING OR DISCONNECTING  
CABLES.  
!
2. The dip-switches on the front panel are configurable for several tasks. Switches 1-6 are used for cascading actions (see  
CASCADING on page 5) and switches 7 and 8 are for keyboard configuration. These keyboard configuration switches come  
pre-configured with both in the “OFF” position. Do not change these settings, as this will cause the PS/2 keyboard to not  
work.  
FYI: Should switch 7 or 8 get changed to the “ON” position, it will be necessary to power-down the entire system  
(including CPUs), change the dip-switches back to the “OFF” position, and then power the system back up. If it is  
necessary to replace one PS/2 keyboard with another one, the keyboard can be hot-swapped without powering-down.  
Refer to Fig. 1 for instructions on proper keyboard dip-switch configuration.  
Front View of KEEMUX-P8  
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NTI  
Network Te chnologies Inc  
Broad Com  
Scan  
cast mand  
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8
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On  
Switch 7 - OFF  
Switch 8 - OFF  
Figure 1- Keyboard dip-switch configuration  
Make Connections  
1. Connect the monitor cable to the 15HD female port labeled “MONITOR” on the rear panel of the KEEMUX.  
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Multi-Scan  
Monitor  
Rear View of KEEMUX-P8  
15HD Female  
Video Connector  
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1275 Danner Dr  
Aurora, OH 44202  
Tel:330-562-7070  
15HD Male  
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Mouse  
Keyboard  
Daisy  
Video Connector  
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5VDC  
2A  
Daisy  
In  
Out  
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CPU  
8
CPU  
7
CPU  
6
CPU  
5
CPU  
4
CPU  
3
CPU  
2
CPU  
1
PS/2 DEVICES  
Figure 2- Connect the monitor to the KEEMUX  
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NTI KEEMUX Series PS/2 KVM Switch  
2. Connect the keyboard cable to the 6 pin miniDIN female port labeled “KEYBOARD” on the rear panel of the switch. Connect  
the mouse cable to the 6 pin miniDIN female port labeled “MOUSE” on the rear panel of the KEEMUX.  
Rear View of KEEMUX-P8  
6 Pin miniDIN Male  
Connector  
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1275 Danner Dr  
Aurora, OH 44202  
www.nti1.com  
Tel:330-562-7070  
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Fax:330-562-1999  
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Daisy  
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5VDC  
2A  
Daisy  
In  
Out  
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CPU  
8
CPU  
7
CPU  
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CPU  
5
CPU  
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CPU  
3
CPU  
2
CPU  
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PS/2 DEVICES  
6 Pin miniDIN Male  
Connector  
PS/2 KEYBOARD & MOUSE  
6 Pin miniDIN Female  
Connector  
Figure 3- Connect the user keyboard and mouse  
3. Connect each CPU to the keyboard, monitor and mouse ports using VEXT-xx-MM for the monitor and VKEXT-xx-MM (2) for  
the mouse and keyboard– REQUIRED (not supplied). See Fig. 4.  
Group the keyboard, monitor and mouse interface cables from each CPU.  
Make sure that cables from the first CPU are connected to the VIDEO 1 and CPU 1 MOUSE and KEYBOARD  
connectors.  
Cables from the second CPU should connect to the VIDEO 2 and CPU 2 MOUSE and KEYBOARD connectors...etc.  
NOTE: If an AT style keyboard connector is on a CPU, insert an  
adapter cable (ADP-5D6MD-R) between the CPU and VKEXT-  
xx-MM cable.  
AT Style Connector  
Port assignments ( KEEMUX-P4 )  
Rear View of PS/2 CPU  
PORT 3  
PORT 4  
PORT 1  
PORT 2  
6 pin miniDIN  
15HD Male  
Female Connectors  
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Video Connector  
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NTI  
1275 Danner Dr  
Aurora, OH 44202  
www.nti1.com  
Tel:330-562-7070  
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Fax:330-562-1999  
Mouse  
Keyboard  
Daisy  
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2A  
Daisy  
In  
Out  
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CPU  
4
CPU  
3
CPU  
2
CPU  
1
PS/2 DEVICES  
VEXT-xx-MM  
6 Pin miniDIN Male  
Connector  
VKEXT-xx-MM  
VKEXT-xx-MM  
6 Pin miniDIN Male  
Connector  
To PS/2 KVM SWITCH  
(PURPLE-KEYBOARD)  
VVKINT-xx-MM  
15HD Female  
Video Connector  
To PS/2  
CPU  
OPTIONAL "Y" CABLE  
(Use instead of two  
(GREEN-MOUSE)  
VKEXT-xx-MM cables)  
Figure 4- Connect a CPU to the KEEMUX  
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NTI KEEMUX Series PS/2 KVM Switch  
Power Up  
1. Turn the KEEMUX power ON first. The mode LEDs on the KEEMUX should flash twice.  
2. Turn the monitor power ON.  
3. Turn any or all of the CPUs ON.  
FYI: Do not press any port buttons on the front panel until the PORT 1 LED on the front panel illuminates.  
CASCADING  
The KEEMUX switch can be expanded to access up to 152 CPUs by cascading multiple units together, as illustrated below. The  
KEEMUX connected to the monitor and keyboard must be configured as the “master unit" (via dip-switches-see page 6). Any  
switches connected to the master unit must be configured as “slave units". All KEEMUXs are fully configurable for this expansion  
method. The only additional hardware required is a set of keyboard, monitor, mouse, and RMT extension cables for each slave  
unit (see Fig. 5 below).  
PS/2 CPU  
x 1...8  
PS/2 CPU  
x 1...8  
PS/2 CPU  
x 1...8  
VEXT-xx-MM  
VEXT-xx-MM  
VVKINT-xx-MM  
VEXT-xx-MM  
VVKINT-xx-MM  
KEEMUX-P8  
VVKINT-xx-MM  
KEEMUX-P8  
(slave unit)  
KEEMUX-P8  
(slave unit)  
(slave unit)  
REXT-SR-xx  
REXT-SR-xx  
PS/2 CPU  
VGA  
Multi-Scan  
Monitor  
KEEMUX-P8  
(master unit)  
PS/2 CPU  
-MM  
VEXT-xx  
VV  
KIN  
T-xx  
-MM  
Figure 5- Cascaded configuration  
Limitations  
a. All the slave units must be the same size.  
b. Only 4, 8, or 16-port switches can be used as slave units.  
c. Up to 8 slave units may be connected to form a maximum system size of 152 ports (1 x 32 port master + 8 x 16 port slaves).  
d. Slave units must be added to the master unit in order (slave #1 to master’s port 1, slave #2 to master’s port 2, etc.).  
FYI: Port 1 of the master unit (with a 4-port slave unit connected to it) will function and be controlled as ports 1-4 (1-8 for  
an 8-port slave, 1-16 for a 16-port, etc.). Port 2 of the master unit (with a second 4-port slave unit connected) will  
function and be controlled as port numbers 5-8 (9-16 for an 8-port slave, 17-32 for a 16-port slave, etc.). See Fig. 6 on  
page 6.  
e. All units must be powered OFF during configuration and interconnecting.  
5
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NTI KEEMUX Series PS/2 KVM Switch  
Configuration  
All 4, 8, and 16-port units are configured using the 8-position dip-switch (located on the front of each unit) according to tables 1  
and 2 below.  
Front Panel Configuration Switches  
Table 1 * (default settings)  
Switch  
STAND-ALONE SWITCH  
SLAVE  
MASTER W/4-PORT SLAVES  
MASTER W/8-PORT SLAVES  
MASTER W/16-PORT SLAVES  
SW1  
OFF*  
ON  
OFF  
OFF  
OFF  
SW5  
OFF*  
OFF  
OFF  
ON  
SW6  
OFF*  
OFF  
ON  
OFF  
ON  
ON  
Table 2 * (default settings) Master & Slave SW2-4 Settings  
About Table 2:  
SW2  
OFF*  
OFF  
OFF  
OFF  
OFF  
ON  
SW3  
OFF*  
OFF  
OFF  
ON  
SW4  
OFF*  
OFF  
ON  
OFF  
ON  
Master with-  
Slave Setting  
N/A  
These switch settings are used by the slave(s) to  
establish its identity (i.e. location in the group) to  
the master.  
No Slave Attached  
1 Slave attached  
2 Slaves attached  
3 Slaves attached  
4 Slaves attached  
5 Slaves attached  
6 Slaves attached  
7 Slaves attached  
8 Slaves attached  
Slave Unit #1  
Slave Unit #2  
Slave Unit #3  
Slave Unit #4  
Slave Unit #5  
Slave Unit #6  
Slave Unit #7  
Slave Unit #8  
On a master, the same switches are used to  
configure the master for how many slaves are  
attached to it.  
ON  
OFF  
OFF  
ON  
OFF  
ON  
ON  
ON  
ON  
OFF  
ON  
ON  
Cascaded Installation  
1. Attach all slaves consecutively to the master switch.  
a. Perform steps 1 and 2 under INSTALLATION on page 4 for each slave unit.  
b. Configure each switch as per the tables above under CONFIGURATION before proceeding.  
c. With a VEXT-xx-MM cable, connect slave #1 monitor port to master’s VIDEO 1 port.  
d. With a VVKINT-xx-MM or (2) VKEXT-xx-MMs, connect slave #1’s PS/2 DEVICES ports to the  
master’s CPU1 KEYBOARD and MOUSE ports.  
e. Repeat steps c and d for each additional slave unit, keeping in mind that each slave will connect to the next available  
master’s port (i.e. slave #2 to master’s VIDEO 2 and CPU 2 KEYBOARD and MOUSE, etc.). See Fig. 6 below.  
If additional 4-PORT slaves are connected to  
CONNECT SLAVES FOR CASCADED  
CPU CONNECTIONS  
MASTER UNIT (KEEMUX-P4)  
VIDEO, PS/2 MOU CPU, & PS/2 KBD CPU ports  
3 & 4, they will function and be controlled as  
CPU ports 9-12 and 13-16 respectively.  
- OR-  
CPU 5-8 CPU 1-4  
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If individual CPUs are connected  
to ports 3 & 4, they will function and  
be controlled as CPU ports 9 & 10  
respectively.  
1275 Danner Dr  
Aurora, OH 44202  
Tel:330-562-7070  
4
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Fax:330-562-1999  
VEXT-xx-MM  
Mouse  
Keyboard  
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5VDC  
2A  
Daisy  
Out  
Day  
In  
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PS/2 DVICES  
CPU  
4
CPU  
3
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2
CPU  
1
CPU 3  
CPU 4  
CPU 1  
CPU 2  
CPU 7  
CPU 8  
CPU 5  
CPU 6  
VVKINT-xx-MM  
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NTI  
1275 Danner Dr  
Aurora, OH 44202  
NTI  
1275 Daner Dr  
Aurora, O44202  
Tel:330-562-7070  
Tel:330-56-7070  
4
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Fax:330-562-1999  
Fax:330-56-1999  
Mouse  
Keyboard  
Daisy  
Mouse  
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5VDC  
2A  
Daisy  
In  
5VDC  
2A  
Daisy  
Out  
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Out  
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P2 DEVICES  
CPU  
4
CPU  
3
CPU  
2
CPU  
1
CPU  
4
CPU  
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CPU  
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CPU  
1
PS/2 DEVICES  
SLAVE UNIT #2 (KEEMUX-P4)  
SLAVE UNIT #1 (KEEMUX-P4)  
For connection of CPUs 5-8  
For connection of CPUs 1-4  
Figure 6- Cable connections for cascading  
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NTI KEEMUX Series PS/2 KVM Switch  
2. Connect Local CPUs to any remaining consecutive ports on the master as described under INSTALLATION on page 3.  
3. Connect the RMT extension cables:  
a. With an RMT extension cable (REXT-SR-xx), connect the master’s “DAISY OUT” port to slave #1’s “DAISY IN” port.  
b. With another RMT extension cable, connect slave #1’s “DAISY OUT” port to slave #2’s “DAISY IN” port. (See Fig. 7  
below.)  
c. Apply additional RMT extension cables until all slave units are connected together.  
NOTE: If switches are not being cascaded, then the “DAISY IN” and “DAISY OUT” ports will not be used.  
SLAVE #2  
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"DAISY IN"  
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NTI  
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1275  
Aurora, OH44202  
ww.nti1.com  
Tel:330-562-7070  
Fax:330-562-199  
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anne  
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Mouse  
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Ke yboar d  
Daisy  
ut  
5VDC  
2A  
Dai sy  
I n  
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5
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1
PS/2 DEVICES  
CP U  
8
CPU  
7
CPU  
6
CP U  
5
CP U  
4
CP U  
3
CP U  
2
CP U  
1
SLAVE #1  
TO SLAVE 1  
"DAISY IN"  
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1275 Danner Dr  
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Tel:330-562-7070  
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Fax:330-562-1999  
Mouse  
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Keyboard  
P
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8
P
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7
P
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5
5VDC  
2A  
Daisy  
Daisy  
In  
Out  
-
+
CPU  
8
CPU  
7
CPU  
6
CPU  
5
CPU  
4
CPU  
3
CPU  
2
CPU  
1
PS/2 DEVICES  
REXT-SR-xx  
REXT-SR-xx  
DAISY OUT  
MASTER  
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NTI  
1275 Danner Dr  
Auora, OH44202  
Tel330-562-7070  
Fax:330-562-1999  
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8
7
6
5
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Mous
Keyboard  
Dais
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5VDC  
2A  
Daisy  
In  
Ou
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PS/2 DEVICES  
CPU  
8
CPU  
7
CPU  
6
CPU  
5
CPU  
4
CPU  
3
CPU  
2
CPU  
1
Figure 7- Connect remote extension cables between cascaded units  
USING THE NTI KEEMUX PS/2 KVM SWITCH  
Control over the CPUs attached to the NTI KEEMUX is achieved through operation of the KEEMUX. Once the KEEMUX is  
properly connected, the KEEMUX will enable a connection to be made between the CPUs attached to its CPU x, and VIDEO x  
ports and the keyboard, monitor, and mouse attached to the PS/2 DEVICES and MONITOR ports. The LEDs on the control  
panel of the KEEMUX will illuminate depending on which port (and associated CPU) is being connected to the keyboard, monitor,  
and mouse. The choice of which CPU will be connected to the keyboard, monitor, and mouse is determined by controlling the  
KEEMUX either through the front control panel on the KEEMUX, by keyboard control, or by optional methods such as RS232 or  
an On Screen Display (OSD).  
Front Panel Control  
There is a touch-switch and LED on the front panel of the KEEMUX for each connected CPU. Pressing any touch-switch on  
the front panel of the KEEMUX will connect the selected CPU to the keyboard, monitor, and mouse.  
Holding down any front panel touch-switch for more than 2 seconds will cause the KEEMUX to cycle through all modes of  
operation: COMMAND, SCAN, BROADCAST, and NORMAL (described on pages 8 and 9). Three LEDs on the front panel  
indicate when these modes are enabled. Release the touch-switch when the desired mode is enabled. When no mode LEDs are  
illuminated the user is in Normal Mode controlling directly the CPU to which the user is connected through the KEEMUX.  
7
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NTI KEEMUX Series PS/2 KVM Switch  
Keyboard Control  
Keyboard control of the KEEMUX can be achieved using either of two methods:  
Basic Command Mode- operated strictly by using keyboard commands as instructed below. Basic Command Mode is only  
applicable if the OSD option is not built into the switch.  
OSD Command Mode (optional)- operated using the keyboard and mouse in conjunction with On Screen Display (OSD)  
menus superimposed onto the monitor. If OSD is built in, use the menus as instructed on page 12.  
By pressing <Ctrl> + <`> (accent key), the user can enter Command Mode (either Basic, or OSD). Once in Command Mode,  
typing a series of commands will cause the KEEMUX to connect the user to any one CPU to which the KEEMUX is attached.  
Once finished, pressing the <Esc> key will exit Command Mode.  
Basic Command Mode  
In order to control the KEEMUX with the keyboard, Command Mode must be enabled. To enter Command Mode from the  
keyboard:  
Press  
(ACCENT  
KEY)  
~
Ctrl  
+
`
NOTE: IF THE OSD FEATURE HAS BEEN INSTALLED, PROCEED DIRECTLY TO “OSD CONTROL”  
ON PAGE 10. If not, continue with the instructions for controlling the KEEMUX as detailed below.  
When the COMMAND LED is illuminated, all 3 status lights on the keyboard will illuminate to indicate that Command Mode is  
enabled and the following functions are available: (NOTE: The user must exit Command Mode in order to type to a CPU. To exit  
Command Mode, press <Esc>.)  
Command Functions  
Function:  
Keystroke:  
Increment Port 1  
(select the next higher port  
ex. 05 06)  
I
or  
or  
(select the next lower port  
ex. 02 01)  
Decrement Port 1  
D
KEY SYMBOLS LEGEND:  
Toggle Scan Mode  
ON and OFF  
S
B
T
or  
PRESS EITHER KEY  
CHORDED SEQUENCE- PRESS CONSECUTIVELY  
AND KEEP KEYS PRESSED UNTIL ALL ARE PRESSED.  
+
Toggle Broadcast  
Mode ON and OFF  
-
PRESS CONSECUTIVELY  
(xxx from 002 to 255. ie. t 002  
would set the time out period  
for 2 seconds)  
Sets scan time-out  
period for each port.  
(0-2)  
x
(0-9)  
x
(0-9)  
x
-
-
-
-
-
Selects a specific  
port  
(0-9)  
x
(0-9)  
x
(Pxx would be P01, P02, etc.)  
P
Esc  
Exit Command Mode  
1 If the SCAN LED is ON, pressing or will cause the switch to select the next active port.  
NOTE: The “port” mentioned in the “Command Functions” above refers to the combination of the video (VIDEO x),  
mouse and keyboard (CPU x) of like numbers that a CPU is connected to (i.e. the CPU that is connected to VIDEO 1 and  
CPU 1 will be identified as Port 1 or P01). (See Fig. 8 on page 9.)  
8
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NTI KEEMUX Series PS/2 KVM Switch  
Port assignments ( KEEMUX-P4 )  
PORT 3  
PORT 4  
PORT 1  
PORT 2  
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NTI  
1275 Danner Dr  
Aurora, OH 44202  
www.nti1.com  
Tel:330-562-7070  
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1
Fax:330-562-1999  
Mouse  
C
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C
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1
Keyboard  
5VDC  
2A  
Daisy  
Daisy  
In  
Out  
+
-
PS/2 DEVICES  
CPU 4  
CPU 3  
CPU 2  
CPU 1  
Figure 8- Connections grouped by port number  
Please note: If the switches are being cascaded (such as that illustrated in Fig. 5 on page 5 under “Cascading”), make  
note of which port each of the CPUs is connected to on each slave and which port each slave is connected to on the  
master.  
The ports on the slave connected to the port 1 port on the master would be numbered 01-04 with multiple  
KEEMUX-P4s, the ports on the slave connected to port 2 would be numbered 05-08 (with multiple KEEMUX-P8s  
they would be 01-08, and 09-16, etc.)  
A connection to a CPU from the keyboard would be achieved by typing the appropriate port number. (See  
Fig. 6 on page 6.)  
No programming of the KEEMUX is necessary to achieve this control.  
When cascading, if not all of the ports are used on each slave attached to your system, THE PORT NUMBER(S)  
ASSOCIATED WITH THE UNUSED PORT(S) WILL NOT BE ACCESSIBLE when trying to control the switches  
connected to the system. (I.e. if ports 7 and 8 are not used on the first slave and an attempt is made to  
connect to ports 7 or 8 while in Command Mode, the KEEMUX will ignore the attempt. )  
Scan Mode  
When in Scan Mode the KEEMUX scans each port with a CPU powered-ON. (The SCAN LED on the front panel will illuminate  
and remain ON while in Scan Mode.) The port with the CPU powered-ON remains active while in use. When the switch becomes  
idle for the configured time-out period (default time-out period is 5 seconds) the switch will connect to the next powered-ON CPU  
port. See Command Mode section above for configuring the scan time-out period.  
FYI: The keyboard and mouse must remain idle for the full scan time-out period before the switch will connect to the next  
active port.  
Broadcast Mode  
(Use with extreme caution or commands intended for one CPU will be sent to all CPUs)  
Broadcast Mode allows the operator to send keystrokes to all active CPUs simultaneously. However, Broadcast Mode has some  
critical requirements.  
BROADCAST LED must be OFF when booting any attached CPUs.  
BROADCAST LED must be ON and COMMAND LED must be OFF for keystrokes to reach attached CPUs.  
Note: The user must type somewhat slowly when in Broadcast Mode (less than 20 wpm) and cannot use the  
<Backspace> key.  
Normal Mode  
When all of the KEEMUX mode LEDs are OFF the user is in Normal Mode, controlling the CPU to which the user is connected  
through the KEEMUX.  
9
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NTI KEEMUX Series PS/2 KVM Switch  
OSD CONTROL  
(Optional)  
OSD superimposes a menu system on the user’s video screen with a list of all connected CPUs. OSD allows CPUs to be named  
(with up to 12-character names). OSD then allows selection of CPUs by that name. Connected CPUs can be listed by name or  
by port number. OSD Search Mode enables the user to type in the first few characters of the CPU's name and the OSD will locate  
it. Help screens assist with all OSD functions.  
Security Option  
The security option of the OSD Control enables an administrator to control access to the CPU ports for each user. Up to 24 users  
can be created. These users have controlled access to any CPU. Only the administrator can activate or deactivate the security  
features. Security can be activated from the Maintenance Mode menu (page 16) with a successful administrator login for  
verification purposes. Furthermore, the administrator can set a maximum idle time value after which the current user will be  
logged out and the login screen displayed. This time out does not function while the OSD is active. The current security status,  
idle time out, and scan dwell time are all saved and will be restored whenever power to the switch is cycled OFF, then ON.  
Enabling the Security Feature  
To enable the security feature the administrator must first enter Command Mode from the keyboard using the sequence <Ctrl> +  
<`> (accent key). The OSD menu will automatically appear on the monitor in addition to illuminating the Command Mode indicator  
LED on the KVM switch. This provides a visual way to control the KEEMUX using the keyboard, monitor, and mouse.  
The administrator , when setting the KEEMUX up for the first time, may want to proceed directly to the ADMINISTRATION  
Mode by typing <CTRL> + <M> , then <A>, and then <Y>.  
The factory settings are:  
default user name = ADMINISTRATOR  
default password = ADMINISTRATOR  
FYI: The user name for administrator cannot be changed from "ADMINISTRATOR"  
Once logged-in, follow the instructions on pages 11 and 12 for setting up users and changing the administrator password. Once  
the password is setup, if it is lost or forgotten, the administrator will have to contact NTI for assistance on clearing the password  
and set it up again. Within the ADMINISTRATION Mode the administrator can setup each of the users and the limitations of their  
use of the individual CPUs on the system.  
When a standard user powers up the system a security screen may appear as setup by the administrator. The user will  
need to login to the system by following the instructions below for the USER LOGIN. If the user does not know the appropriate  
user name and password (setup by the administrator), contact the system administrator for this information. Once logged-in a  
user can follow the Command Functions described on page 15 to control the system of CPUs within the limitations as set by the  
administrator.  
User Login Mode  
User Login Mode requires a user to login with a user name and password from the list created by the administrator. Access to  
the functions of the KEEEMUX will not be allowed until a user has logged in.  
Function:  
Keystroke:  
A-Z  
0-9  
Adds a character to the  
user name/password  
(Type any alphabetical or numeric character)  
Removes previous character  
from the user name/password  
Backspace  
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NTI KEEMUX Series PS/2 KVM Switch  
User Login Mode (Cont'd)  
Function:  
Keystroke:  
Enter  
Submit user name/password  
If the password submitted is incorrect, the user will not be  
able to proceed.  
Exit User Login Mode and return  
to previous mode. This function  
is only available if security is  
not currently active.  
If the password submitted is correct, the user will proceed  
to the maintenance menu for additional feature options.  
Esc  
.
Additional Modes Available With Security  
NOTE: The lists that follow are only available if the administrator is logged in.  
Administration Mode  
Administration Mode allows the administrator to use the following functions:  
Function:  
Keystroke:  
Change the administrator’s  
password  
C
Enter User Name List Mode  
Disable security  
U
S
(xxx from 000 to 255. ie. t002  
would set the time-out period  
for 2 seconds. 000 will disable it)  
(0-2)  
x
(0-9)  
x
(0-9)  
x
Selects the idle time in seconds  
-
T
-
-
Exit Administration Mode and  
return to previous mode  
Esc  
Administrator Password  
To change the administrator password press <C> from  
the Administration Mode menu.  
The administrator is able to change the administrator  
password as needed (see Fig. 9). Two edit fields are  
available, one for password, the other for verify password.  
The password can be up to 13 characters in length.  
Note: The default password for the  
administrator is ADMINISTRATOR.  
Figure 9- Administrator password change  
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NTI KEEMUX Series PS/2 KVM Switch  
Function:  
Keystroke:  
Add character to password string  
or verify password string  
A-Z  
0-9  
(Type any upper or lower case  
alphabetical or numeric character)  
A-Z  
Shift  
or  
+
Delete previous character in  
edited string  
Backspace  
(If Password string and Verify Password string  
are different, this command will have no effect,  
enabling the administrator to correct the password)  
Save new password.  
Enter  
Tab  
Move to next field to be edited  
Return to Administration Mode  
Esc  
User Name List  
The User Name List displays the list of users and provides control for adding new users, changing or assigning user passwords,  
and changing access rights for any given user. User names may be up to 12 characters long, may not contain spaces, and are  
not case sensitive. Passwords may be up to 15 characters long, may not contain spaces, and are case sensitive.  
Function:  
Keystroke:  
Ctrl  
Edit the highlighted user’s  
System Access rights  
A
E
+
+
Enter Edit Mode to add/change/  
remove users  
Ctrl  
Change the highlighted user’s  
password  
Ctrl  
Esc  
+
P
Exit the User Name List and  
return to previous mode  
System Access List  
The System Access List displays a list of numbers representing the ports so the administrator can change access rights to the  
ports for the selected user. The user’s name is displayed at the top of the access list. The mouse is used to change access rights  
by clicking on a given number to toggle a port’s status. A user that has access to a port can connect to that port and control the  
CPU connected to that port when in Normal Mode.  
Function:  
Keystroke:  
Enter  
Save the changes to the access  
list and return to previous mode  
Exit the System access list without  
saving and return to previous mode.  
Esc  
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NTI KEEMUX Series PS/2 KVM Switch  
User Access Functions  
Introduction  
The OSD menu enables a user to name the CPUs connected to the KEEMUX and connect to them using that name from a single  
keyboard and mouse. The OSD is positioned on the user's monitor, displaying 8 CPU names at a time. The screen can be used  
for switching as well as editing the CPUs’ names. Through the OSD menu, the user can control the KEEMUX to cycle through all  
modes of operation: COMMAND, SCAN, BROADCAST and NORMAL. LEDs on the front panel will illuminate to indicate when  
these modes are enabled.  
OSD Command Mode  
If the OSD option is installed, when entering the Command Mode from the keyboard using the <Ctrl> + <`> (accent key),  
the On Screen Display menu will automatically appear on the monitor in addition to illuminating the indicator LEDs on the KVM  
switch. This provides a visual way to control the KEEMUX using the keyboard, monitor, and mouse.  
The list below describes the command functions available from the keyboard within the OSD mode of control after entering into  
Command Mode and while the COMMAND LED is illuminated:  
Function:  
Keystroke:  
Select the previous port  
Select the next port  
Ctrl  
Enable/disable Scan Mode  
S
+
+
+
+
Ctrl  
Ctrl  
Ctrl  
B
E
Enable/disable Broadcast Mode  
Enter Edit Mode  
Enter Maintenance Mode  
M
Display Help Menu (available with  
every control mode)  
F1  
Figure 10- Command Mode menu  
(xxx from 002 to 255. ie. t002  
would set the time-out period  
for 2 seconds)  
Sets scan time-out on  
each port  
(0-2)  
x
(0-9)  
x
(0-9)  
x
Ctrl  
Ctrl  
-
T
-
+
-
(0-9)  
x
(0-9)  
x
(Pxx would be P01, P02, etc.)  
Selects a specific port  
-
P
-
+
Enters Search Mode and adds a character  
to search string and selects the CPU’s  
name that matches best.  
A-Z  
0-9  
(Type any alphabetical or numeric character)  
Note: The user must exit Command Mode to type  
to a CPU.  
Selects the first port on the switch  
Home  
To exit Command Mode, either hold down any  
touch-switch on the front panel for more than 2  
seconds, OR press <ESC>.  
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NTI KEEMUX Series PS/2 KVM Switch  
OSD Command Mode (Cont'd)  
Function:  
Keystroke:  
Selects the last port on the switch  
Switch to a selected port  
End  
Enter  
Exit OSD Command Mode  
Esc  
The mouse can also be used to control Command Mode. The mouse  
cursor can be moved to the Scan, Help, and Exit fields where the user  
can then click on the left mouse button to perform that function. Ports  
listed on the screen can be selected by moving the cursor onto that port  
and clicking. Clicking twice on a selected port will switch to that port  
and exit Command Mode. To change the displayed ports on the screen  
simply click on the up and down arrows located to the right of the port  
names displayed.  
Figure 11- Press <Ctrl> for more functions  
Scan Mode  
When in Scan Mode the switch scans to each port with a CPU powered-ON. (The SCAN LED on the front panel will illuminate and  
remain ON while in Scan Mode.) To enter Scan Mode press <Ctrl> + <S> from Command Mode. The port with the CPU  
powered-ON remains active while in use. When the switch becomes idle for the configured time-out period (default time-out  
period is 5 seconds) the switch will connect to the next powered-ON CPU port. See Command Mode section above for configuring  
the scan time-out period.  
NOTE: The keyboard and mouse must remain idle for the full scan time-out period before the switch will connect to the  
next active port.  
Broadcast Mode  
(Use with extreme caution or commands intended for one CPU will be sent to all CPUs)  
Broadcast Mode allows the operator to send keystrokes to all active CPUs simultaneously (even those CPUs the user cannot  
connect to due to lack of security access ). To enter Broadcast Mode press <Ctrl> + <B> from Command Mode. Broadcast Mode is  
indicated by the illumination of the BROADCAST LED on the front panel. The BROADCAST LED will remain ON while in  
Broadcast Mode. However, Broadcast Mode has some critical requirements:  
BROADCAST LED must be OFF when booting any attached CPUs.  
BROADCAST LED must be ON and COMMAND LED must be OFF for keystrokes to reach attached CPUs.  
Normal Mode  
When all of the KEEMUX mode LEDs are OFF the user is in Normal Mode, controlling the CPU to which the user is connected  
through the KEEMUX.  
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NTI KEEMUX Series PS/2 KVM Switch  
Edit Mode  
Edit Mode allows the user to modify the names of the CPUs connected to the switch. Names of CPUs can be up to 12 characters  
in length. To enter Edit Mode press <Ctrl> + <E> from Command Mode. When in Edit Mode, multiple keystroke combinations  
are not valid (<SHIFT>+<P>, <CTRL>+<P>, <ALT>+ <P>, and <P> will all type a “P” to the display - lower case letters cannot be  
typed). After changes have been made the user will be prompted by the menu to save the changes. Answer "Y" to save changes  
and answer "N" to continue using previously entered port names.  
Function:  
Keystroke:  
Move cursor one position  
to the right  
Move cursor one position  
to the left  
Previous port  
Next port  
Selects the first port on  
the switch  
Home  
Selects the last port on  
the switch  
End  
Insert  
Delete  
Figure 12- Edit Mode screen  
Toggles between insert  
and overstrike  
(The character either gets inserted and the remainder of the name  
gets shifted to the right, OR the current character gets overwritten.)  
Erase current character  
Erase previous character  
Backspace  
When finished making changes in Edit Mode, press <Enter> and a prompt will appear to press either <Y> to save the changes or  
<N> to continue making changes without saving the changes just made. If the <ESC> key is pressed instead of <Enter>, all  
changes made will be cancelled and the display will return to the previous menu.  
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NTI KEEMUX Series PS/2 KVM Switch  
Search Mode  
Search Mode allows the user to enter and maneuver through a list of CPU names. As the user types, the best matching CPU  
name is selected. The list of CPUs may also be searched for a specific (or similar) name. From Command Mode, type any  
alphabetical or numeric character to enter Search Mode. The following commands are valid when the search option has been  
invoked from Command Mode.  
Function:  
Keystroke:  
Erase previous character  
in search name  
Backspace  
Move cursor one position to  
the right in search name  
Move cursor one position to  
the left in search name  
Select previous port  
Select next port  
Figure 13- Search Mode screen  
Add a character to the search  
string and select the best  
matching CPU name  
A-Z  
0-9  
(Type any alphabetical or numeric character)  
Exit Search Mode, return to  
Command Mode  
Esc  
Enter  
Switch to selected port  
Maintenance Mode  
Maintenance Mode allows a user to customize the On Screen Display to their requirements. To enter Maintenance Mode press  
<Ctrl> + <M> from Command Mode.  
Function:  
Keystroke:  
Reset all of the port names  
R
Toggle between numeric and  
alphabetic listing of ports  
L
Move On Screen Display (OSD)  
window up on monitor  
Move OSD window down on  
monitor  
Move OSD window to the right  
Move OSD window to the left  
Figure 14- Maintenance Mode screen  
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NTI KEEMUX Series PS/2 KVM Switch  
Maintenance Mode (Cont’d)  
Function:  
Keystroke:  
Make OSD window taller  
T
S
P
Make OSD window shorter  
Change user password.  
(Present only when a standard  
user is logged in.)  
Log current user out and return  
to User Login Mode.  
Q
Activate security features.  
Present only when security is  
available but not active.  
NOTE: If activating security features, the user will  
be prompted for a “Y” (yes) or “N” (no) to confirm  
the menu choice, at which point the user will be  
asked for a username and password before  
continuing. Only the administrator can activate the  
security features.  
A
Enter Administration Mode.  
Option present only when administrator  
is logged in.  
Enter  
Save OSD window parameters  
for the port  
Return to Command Mode  
Esc  
Help Mode  
This mode displays a list of commands with a short explanation of their function. These lists are organized in pages for each  
mode (i.e. COMMAND, EDIT, SEARCH, and HELP). To enter Help Mode press <F1> from Command Mode. The following options  
allow the user to quickly obtain information on any command.  
Function:  
Keystroke:  
Page  
Up  
View the previous page of help  
if available  
Page  
Down  
View the next page of help  
if available  
Exit HELP and return to previous  
mode  
Esc  
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NTI KEEMUX Series PS/2 KVM Switch  
RS232 CONTROL  
(Optional)  
Rear View of KEEMUX-P4-RS  
RS232  
OFF  
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RS232 Connections and Configuration  
1
2
3
4
5
6
7
8
4
3
2
1
ON  
Mouse  
Keyboard  
Daisy  
C
P
U
4
C
P
U
3
C
P
U
2
C
P
U
1
R
5VDC  
2A  
Daisy  
In  
NTI  
Out  
1275 Danner Dr  
+
-
Aurora, OH 44202  
Tel:330-562-7070  
Fax:330-562-1999  
PS/2 DEVICES  
CPU  
4
CPU  
3
CPU  
2
CPU  
1
Remote Connection  
The RS232 Interface (optional) is designed to meet the RS232C standard and can be controlled from any CPU or other controller  
with an RS232 communications port. The pin-out for the DB-9 connector(s) on the unit is as follows:  
RS232 CONNECTOR (DB-9 FEMALE)  
PIN  
1
SIGNAL  
CD  
FUNCTION  
Carrier Detect  
2
TXD  
RXD  
DTR  
GND  
DSR  
RTS  
CTS  
-
Transmit data (RXD at host)  
Receive data (TXD at host)  
Data terminal ready  
Signal ground  
3
4
5
6
Data set ready  
7
Request to send  
Clear to send  
8
9
No connection  
Note: Security must be disabled or user access granted on the port(s) to be selected by RS-232 control.  
On the DB-9 female connector, pins 1 (DCD), 4 (DTR), and 6 (DSR) are shorted and pins 7 (RTS) and 8 (CTS) are shorted.  
Therefore, host handshaking is bypassed and TXD and RXD are the only active signals. A straight-through DB-9 serial cable (not  
null modem- see specifications on page 26) will work for most CPUs. To daisy chain multiple units, a Matrix Y-1 cable is used  
(see page 19) for each KEEMUX in the chain. The last unit in the chain should have DIP switch 1 ON (see table under "Unit  
Address and Loop Back" on page 19).  
Baud Rate  
The baud rate can be changed by powering down the unit, changing the 8 position RS232 dip switch on the rear of the KEEMUX,  
and then powering back up. This table shows how to set the baud rate.  
DIP SWITCH  
BAUD RATE  
4
3
2
OFF  
1 2 3 4 5 6 7 8  
ON  
OFF OFF OFF  
OFF OFF ON  
OFF ON  
OFF ON  
300  
600  
1200  
2400  
OFF  
ON  
ON  
ON  
ON  
OFF ON  
9600  
ON  
ON  
OFF  
ON  
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NTI KEEMUX Series PS/2 KVM Switch  
Unit Address and Loop Back  
To allow multiple units to be controlled from a single CPU port, the RS232 control interface is designed to allow "daisy chaining"  
up to 15 units. By setting the appropriate RS232 dip switches, each unit can be given a unique address (1-15). Then the unit will  
only respond to commands on the bus if its address is embedded in the command. Use the table below to set the unit address.  
DIP SWITCH  
UNIT ADDRESS  
8
7
6
5
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
ON  
ON  
ON  
ON  
ON  
OFF OFF  
OFF OFF  
OFF ON  
OFF ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
0 (not valid)  
1
2
3
4
5
6
7
ON  
ON  
ON  
ON  
OFF  
OFF  
ON  
ON  
OFF OFF  
OFF OFF  
OFF ON  
OFF ON  
8
9
10  
11  
12  
13  
14  
15  
ON  
ON  
ON  
ON  
OFF  
OFF  
ON  
ON  
ON  
ON  
ON  
Note: In order to connect multiple KEEMUX units together a Matrix-Y-1 cable must be used. (See Fig. 15.) See Fig. 16 for  
the pinout of the Matrix-Y-1 cable. The Matrix-Y-1 cable is available from Network Technologies Inc.  
RS232  
Serial Port  
Matrix-Y-1  
Matrix-Y-1  
Matrix-Y-1  
CPU  
RS232  
RS232  
NTI  
RS232  
NTI  
NTI  
SWITCH  
SWITCH  
SWITCH  
First Unit  
Second Unit  
Last Unit  
Figure 15- RS232 connection with Matrix-Y-1 cable  
Wiring Schematic of Matrix-Y-1 cable  
9D Male  
(Unit #1)  
9D Female  
(Source)  
9D Male  
(Unit #2)  
2
3
3
3
5
2
7
Not connected to  
source connector  
5
5
2
Jumper  
8
1
4
6
Jumpers  
Figure 16- Pinout of Matrix-Y-1 cable  
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NTI KEEMUX Series PS/2 KVM Switch  
Command Protocol  
CPU controller commands supported by the unit are defined below. All commands should be terminated with a <CR> (carriage  
return). When a command is sent, the entire string is echoed back along with a response from the addressed unit . All characters  
in the command string should be upper case, and all numbers below 10 should have a leading 0 (ex: 1 = 01). As command  
strings are sent, the inner character delay cannot exceed 500 milliseconds.  
Note: To use this command protocol, the user is required to write a program that will send an entire command string all  
at once, not character by character. Programs that send one character at a time (such as HyperTerminal) cannot be used  
to control the KEEMUX. Alternatively, the user may use the Matrix Switcher's Control Program or SerTest to control the  
KEEMUX via RS232 (see page 21).  
RS - reset unit(s) to default power-up configuration  
FORMAT:  
RS AA<CR>  
RS = "reset unit" command followed by at least one space  
AA = unit address; if 00, all units on the bus will be reset and no response will be  
returned  
RESPONSE:  
*<CR> if command received and executed OK  
-OR-  
?<CR> if syntax or transmission error occurred  
Note: The RS command does not change the actual configuration.  
CS - change single USER channel  
FORMAT:  
CS AA,XX,YY<CR>  
CS = "change single output" command followed by at least one space  
AA = unit address  
XX = input/CPU to connect  
YY = output/USER to change  
RESPONSE:  
*<CR> (command received and executed OK)  
-OR-  
?<CR> (syntax or transmission error occurred)  
RO - read single USER channel  
FORMAT:  
RO AA,XX<CR>  
RO = "read output" command followed by at least one space  
AA = unit address  
XX = output/USER to read  
RESPONSE:  
*<CR> (command received and executed OK)  
XX<CR> (XX = input/CPU connected)  
-OR-  
?<CR> (syntax or transmission error occurred)  
RU - read unit size  
FORMAT:  
RU AA<CR>  
RU = "read unit size" command followed by at least one space  
AA = unit address  
RESPONSE:  
*<CR> (command received and executed OK)  
XX,YY<CR> (XX = # of CPU’s, YY = # of USERS)  
-OR-  
?<CR> (syntax or transmission error occurred)  
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NTI KEEMUX Series PS/2 KVM Switch  
NTI Switch Control Program For Windows 9X, NT, 2000 And XP  
The Matrix Switcher's Control Program is an easy and powerful graphical program that controls NTI switches through an RS232  
interface. The NTI Switch Control Program is included on the CD packaged with the KEEMUX. The NTI Switch Control  
Program is downloaded by clicking on the link "Download NTI Switch Control Program" found on the webpage that opens when  
you insert the instruction manual CD into your CD ROM drive.  
To install the NTI Switch Control Program after downloading  
1. Locate the Setup.exe in the directory the program was downloaded to and double-click on it  
2. Follow the instructions on the screen  
The NTI Switch Control Program performs best on monitors set to a screen resolution of at least 800 X 600. Instruction for using  
the NTI Switch Control Program is available by opening "MSCP Help" in the "NTI" program group once the program has been  
installed and is open on the screen.  
To open "MSCP Help" from the Windows desktop  
1. Click on START  
2. Click on PROGRAMS  
3. Click on NTI  
4. Click on MSCP Help  
SerTest- RS232 Interface Test Program  
This software allows a user to test the functions of an NTI server switch, matrix switch or Multi-user/Multi-platform/Single-user  
switch RS232 interface. The SerTest program is automatically loaded when installing the MATRIX SWITCHER'S CONTROL  
PROGRAM as described above. The SerTest program, located in the NTI program group, generates a main menu with the 4  
selections described below:  
Main Options  
- send commands to the unit.  
Switch Operations  
Ethernet Operations  
Setup Options  
- set ethernet connection variables (not applicable to this model)  
- set COM port, baud rate, and unit address  
- display the program version  
About SerTest  
If Matrix Operations is selected, the following menu is displayed:  
SWITCH OPERATIONS  
1) Reset Unit  
- send a reset command to the switch  
- the current unit address is displayed in parentheses  
2) Reset All Units  
- send an internal reset command to all switches  
3) Connect Output/User to an Input/CPU  
- connect an output to an input  
4) Connect All Outputs/Users to an Input/CPU (not applicable to this model)  
- connect all outputs to an input  
5) Connect Audio Output/User to an Input/CPU (only applicable to models with audio support)  
- connect an output to an input (Audio ports only)  
6) Connect All Audio Outputs/Users to an Input/CPU (only applicable to models with audio support)  
- connect all outputs to an input (Audio ports only)  
7) Change Mute Status for Audio Output/User (only applicable to models with audio support)  
- mute or un-mute the Audio port output  
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NTI KEEMUX Series PS/2 KVM Switch  
8) Change Volume for Audio Output/User (only applicable to models with audio support)  
- change Audio port output volume  
9) Read Connection for Output/User  
- read what input is connected to the specified output  
a) Read Connection for Audio Output/User (only applicable to models with audio support)  
- read what input is connected to the specified output  
b) Read Mute Status and Volume for Audio Output/User (only applicable to models with audio support)  
- read the volume and the mute status of the specified output (Audio ports only)  
c) Read Unit Size  
- read the switch size (number of inputs and outputs)  
d) Read Unit Version/Revision String (not supported by this model)  
- read a string containing the switch version, type, and size  
e) Save I/O Connections into Unit Memory (not applicable to this model)  
- save the connections into switch memory bank  
f) Restore I/O Connections from Unit Memory (not applicable to this model)  
- restore the connections from switch memory bank  
g) Save All Units I/O Connections into Units Memory (not applicable to this model)  
- save the connections into switch memory bank, command for all switches  
h) Restore All Units I/O Connections from Units Memory (not applicable to this model)  
- restore the connections from switch memory bank, command for all switches  
i) Change All Units Baud Rate (9600/COM1)  
- change RS-232 Baud rate of all switches  
- the current baud rate and serial port are displayed in parentheses  
ETHERNET OPERATIONS (not applicable to this model)  
SETUP OPTIONS  
1) select Com port current: (COM1:)  
- select PC serial port  
- the current PC serial port is displayed in parentheses  
2) select Baud rate current: (9600)  
- select PC serial port baud rate  
-
the current baud rate is displayed in parentheses  
3) set unit Address current: (1)  
- select the unit address of the switch to be connected to by this program  
- the current address is displayed in parentheses  
For any selection that requires user input, the user is prompted. When commands are sent to the KEEMUX, the  
command string and KEEMUX responses are echoed to the screen. All commands generated by the program are  
formatted according to the information provided in sections above. If any transmission problems are detected, an error  
message is displayed.  
Press <Esc> or <Enter> to back out to the main menu and press again to exit.  
KEYBOARD MAPPING  
The keyboard configuration of each CPU is saved in the KEEMUX. For example, if the CPU attached to Port 4 had CAPS LOCK  
and NUM LOCK selected the last time that CPU was accessed, then they will automatically be set when Port 4 is accessed again.  
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NTI KEEMUX Series PS/2 KVM Switch  
HOW TO DISABLE OPERATING MODES  
The operating modes of the KEEMUX can be disabled if a user desires to do so. The Command Mode can be disabled  
which would also disable the Scan and Broadcast Modes, or, the Scan and/or Broadcast Modes can be individually disabled  
leaving the other features in Command Mode enabled.  
To disable these operating modes, the user must get access to the jumper block. This block is located close to the dip-  
switches on the circuit board the keyboards plug into (called the digital board) inside the KEEMUX. (See Fig. 17.)  
15HD Connector  
Rear Panel  
Closeup view of jumper block on digital board.  
JUMPER BLOCK  
DIP SWITCHES  
L
S
C
A
N
B
R
D
C
K
C
M
D
C
D
E
Video Board  
Digital Board  
LED Board  
Front Panel  
The jumper block is located  
below the LED board.  
Overhead view of video board on top of digital board.  
Figure 17- Location of the jumper block  
If the unit is a rackmount style, the digital board is located directly beneath the cover of the unit, requiring the user to only remove  
the 10 screws from the cover to get access. With the cover removed, the jumper block will be easy to locate. Follow the  
instructions under "CONFIGURING THE JUMPER BLOCK" on page 24 to disable the desired mode(s).  
If the unit is in a plastic case, the digital board is located on the bottom of the case, requiring the user to partially disassemble the  
unit to gain access to the jumper block.  
For models KEEMUX-Px in a plastic case:  
1. Make sure the KEEMUX is completely disconnected from all CPU components. Be sure to unplug the KEEMUX from  
the electrical outlet.  
2. Remove the two Philips-head screws from the underside of the KEEMUX and set the KEEMUX on a firm and flat  
surface, bottom down. (See Fig. 18.)  
Philips-head screws  
holding the plastic case  
together  
View of bottom of plastic case  
Figure 18- Remove screws to open case  
3. Remove the top half of the plastic case from the KEEMUX.  
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NTI KEEMUX Series PS/2 KVM Switch  
NOTE: Before proceeding, it is important to discharge any static charge you may be carrying by touching any large  
metal object (away from the KEEMUX).  
4. With it loosened, grasp firmly the front panel and slide the front panel up out of the slots in the plastic case that support it.  
Once clear of the case, pivot the assembly forward approximately 1", just enough to provide access to the jumper block. (See  
Fig. 19.) Be careful not to dislodge the connection of the ribbon connecting the front panel to the digital board. If it appears  
to become loose, be sure to reseat the connection before re-assembly. Now follow the instructions under "CONFIGURING  
THE JUMPER BLOCK" on page 24.  
Lift and pivot front panel......  
Jumper block  
Ribbon from LED  
board to digital board  
....and pull forward enough  
to access jumper block.  
Pull front panel assembly far enough forwared to provide access to jumper block.  
Figure 19- Clear the jumper block for configuration access  
Configuring The Jumper Block  
Once the jumper block is exposed, apply a jumper across the appropriate pins to disable the desired mode(s) according to  
the chart below.  
If the unit has an LCD  
this jumper will be here.  
Pin Designation  
KCMD  
BRDC  
Mode  
JUMPER BLOCK  
Command Mode*  
Broadcast Mode  
Scan Mode  
L
S B K  
C R C  
A D M  
N C D  
DIP SWITCHES  
C
D
E
SCAN  
*Note: Putting a jumper across pins KCMD to  
disable Command Mode will also disable  
Broadcast and Scan Modes.  
JUMPER (unused)  
Drawing shows jumper across SCAN pins, disabling Scan Mode.  
Broadcast Mode is still enabled.  
Figure 20- Place jumpers according to desired functionality  
Once the desired jumpers are in place, reverse the disassembly process to re-assemble the KEEMUX. Be particularly  
careful to make sure all dip switches are in the OFF position (see Fig. 1 on page 3). Do not turn the power ON until the unit has  
been properly re-assembled.  
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NTI KEEMUX Series PS/2 KVM Switch  
AUDIO SUPPORT  
(Optional)  
Audio support provides the following additional features:  
Audio signals from the same CPU that keyboard, mouse, and video signals are from can be received by the user.  
Audio inputs accept any standard line level audio (1Vrms or 2.5Vp-p).  
Audio outputs are capable of driving an 8 Ohm speaker load with 200mW of continuous RMS power.  
Audio signals are switched along with the keyboard, mouse and video signals using the buttons on the KEEMUX switch.  
Rear View of KEEMUX-P4-A  
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AUD  
OUT  
AUD 4 AUD 3 AUD 2 AUD 1  
4
3
2
1
R
Mouse  
Keyboard  
Daisy  
C
C
P
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3
C
P
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2
C
P
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1
P
U
4
NTI  
5VDC  
2A  
Daisy  
In  
1275 Danner Dr  
Aurora, OH 44202  
Tel:330-562-7070  
Out  
+
-
Fax:330-562-1999  
CPU 4  
CPU 3  
CPU 2  
CPU 1 PS/2 DEVICES  
Figure 21- Control CPU audio with KEEMUX-P4-A  
DUAL VIDEO SUPPORT  
(Optional)  
Dual Video support enables CPUs with two video outputs to be connected to the KEEMUX switch and two user monitors to be  
connected to view both sets of video signals. Both monitors must be of the type VGA multi-scan.  
Rear View of KEEMUX-P4-DV  
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Mouse  
Keyboard  
Daisy  
C
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4
C
P
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3
C
P
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2
C
P
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1
5VDC  
2A  
Daisy  
In  
NTI  
Out  
1275 Danner Dr  
+
-
Aurora, OH 44202  
www.nti1.com  
Tel:330-562-7070  
Fax:330-562-1999  
CPU 4  
CPU 3  
CPU 2  
CPU 1 PS/2 DEVICES  
Figure 22- Connections for video cables on the KEEMUX-P4-DV  
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NTI KEEMUX Series PS/2 KVM Switch  
SPECIFICATIONS FOR STRAIGHT-THROUGH RS232 SERIAL CABLE  
KEEMUX to PS2 CPU (9 PIN)  
KEEMUX  
9 pin  
PS/2 CPU  
9 pin  
4
1
3
5
2
Signal  
Direction Pin #  
Function  
Pin #  
Function  
6
8
9
7
RxD  
TxD  
CTS  
RTS  
DSR  
DTR  
SG  
3
2
7
8
4
6
5
3
2
7
8
4
6
5
TxD  
RxD  
RTS  
CTS  
DTR  
DSR  
SG  
Mating Face  
of a 9D Male  
Terminals 7 and 8 are jumpered together and terminals 4 and 6 are jumpered together.  
TROUBLESHOOTING  
If the KEEMUX is not working properly, please look for a solution in the list below:  
PROBLEM:  
SOLUTION:  
Keyboard Errors  
Check cable connections on each CPU and the switch.  
PROBLEM:  
SOLUTION:  
No Video  
Check cable connections on each CPU and the switch. Verify that keyboard, video, and mouse connect from  
each CPU to matching ports. After reconnecting, the CPU may need to be re-booted in order to sense the  
monitor connection.  
PROBLEM:  
SOLUTION:  
No Mouse Movement  
Check cable connections on each CPU and the switch. Verify that keyboard, video, and mouse connect from  
each CPU to matching ports. Verify that the mouse driver was loaded.  
PROBLEM:  
SOLUTION:  
No Keyboard Activity after running shutdown program on IBM PowerServer 220  
1. Select a different port from the front panel buttons.  
2. Turn power OFF to PowerServer 220.  
(either step above will enable keyboard)  
PROBLEM:  
Monitor shuts down while working with OSD menu  
SOLUTION: Disengage or increase time setting of CPU’s monitor “sleep” mode from the BIOS and/or control panel display  
settings. (The CPU does not sense activity while in the OSD menu )  
If a solution was not found in the list above, answers may be found in the Frequently Ask Questions (FAQs) section of our  
website at http://www.nti1.com or call us directly at (800) 742-8324 (800-RGB-TECH) or (330) 562-7070 and we will be happy to  
assist in any way we can.  
WARRANTY INFORMATION  
The warranty period on this product (parts and labor) is two (2) years from the date of purchase. Please contact Network  
Technologies Inc at (800) 742-8324 (800-RGB-TECH) or (330) 562-7070 or visit our website at http://www.networktechinc.com for  
information regarding repairs and/or returns. A return authorization number is required for all repairs/returns.  
Man077 Rev 7/2/07  
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